Imboni yezolimo ithuthuke kakhulu eminyakeni yamuva nje, futhi enye yentuthuko enjalo ukwethulwa kwetheyipu yokunisela enemigqa emibili yokunisela. Lobu buchwepheshe obusha bushintshe indlela abalimi abanisela ngayo izitshalo zabo futhi bunikeza izinzuzo eziningi kunezindlela zokunisela zendabuko. Njengoba inamandla okonga amanzi, ukwandisa isivuno sezitshalo nokunciphisa izindleko zabasebenzi, itheyipu yokunisela enemigqa emibili iya ngokuya ithandwa ngabalimi emhlabeni jikelele.
Itheyiphu yokunisela enemigqa emibili iwuhlelo lokunisela olufaka phakathi ukusetshenziswa kwemigqa emibili efanayo yetheyiphu yokunisela ebekwe phezu kwenhlabathi, kanye nama-emitter abekwa ngezikhathi ezithile. Uhlelo luqinisekisa ukusatshalaliswa kwamanzi okusebenzayo kakhudlwana, okuvumela izitshalo ukuthi zithole umswakama eziwudingayo ngqo endaweni yezimpande. Ngokungafani nezindlela zokunisela ezivamile ezibangela ukugeleza kwamanzi nokuhwamuka, itheyiphu yokunisela enemigqa emibili ihambisa amanzi ngqo ohlelweni lwezimpande zesitshalo, okunciphisa kakhulu imfucuza yamanzi.
Inzuzo eyinhloko yetheyiphu yokucwilisa enemigqa emibili yikhono layo lokonga amanzi. Ngokuhambisa amanzi ngqo ezimpandeni zezitshalo, le ndlela yokunisela iqeda ukulahleka kwamanzi ngokuhwamuka kanye nokugeleza kwamanzi, ngaleyo ndlela yandisa ukusebenza kahle kokusetshenziswa kwamanzi. Ucwaningo lubonisa ukuthi itheyiphu yokucwilisa enemigqa emibili ingonga amanzi afinyelela ku-50% uma kuqhathaniswa nezindlela zendabuko zokunisela phezulu. Njengoba ukushoda kwamanzi kuba yinto ekhathazayo ezifundeni eziningi, lobu buchwepheshe bunikeza ikhambi elihlala isikhathi eside ekuphathweni kwamanzi ezolimo.
Ngaphezu kwalokho, itheyiphu yokunisela enemigqa emibili iboniswe ukuthi ikhulisa isivuno sezitshalo kanye nekhwalithi. Ngokuhlinzeka ngamanzi ahlala njalo endaweni yezimpande, lolu hlelo lokunisela luthuthukisa ukukhula kwezitshalo kanye nentuthuko. Kuye kwaphawulwa ukuthi izitshalo eziniselwa ngamatheyiphu okunisela anemigqa emibili zinokuthuthuka okungcono kwezimpande, ukwanda kokumuncwa kwezakhamzimba, kanye nokukhula kokhula okunciphile. Lezi zici zisiza ekwandiseni isivuno sezitshalo futhi zithuthukise ikhwalithi yezitshalo, ekugcineni zizuzise abalimi.
Ngaphezu kokonga amanzi nokwandisa isivuno sezitshalo, itheyiphu yokunisela nge-drip enemigqa emibili nayo inezinzuzo zokonga abasebenzi. Ngokungafani nezindlela zokunisela zendabuko ezidinga umsebenzi omningi wezandla, itheyiphu yokunisela enemigqa emibili ingafakwa kalula futhi isetshenziswe ngokungenelela okuncane kwezandla. Uma uhlelo selufakiwe, abalimi bangenza inqubo yokunisela ibe ngokuzenzakalelayo futhi balawule ukugeleza kwamanzi ngamathuluzi ahlukahlukene obuchwepheshe. Lokhu akugcini nje ngokunciphisa isidingo sokuqapha njalo kanye nomsebenzi wezandla, kodwa futhi kuvumela abalimi ukuthi bagxile kwezinye izici ezibalulekile zemisebenzi yabo yokulima.
Itheyiphu yokucwilisa enemigqa emibili ithandwa kakhulu emhlabeni jikelele. Emazweni afana ne-India, i-China ne-United States, abalimi sebewamukele kabanzi lobu buchwepheshe, beqaphela amandla alo okuthuthukisa ukusebenza kahle kokunisela nokunciphisa izinselele zokuntuleka kwamanzi. Ohulumeni kanye nemboni yezolimo nabo bakhuthaza ukwamukelwa kwetheyiphu yokucwilisa enemigqa emibili ngokusebenzisa izikhuthazo ezahlukahlukene kanye nezinhlelo zemfundo ezihlose ukudala umkhakha wezolimo ozinzile nokhiqizayo.
Ikhono layo lokonga amanzi, ukwandisa isivuno sezitshalo kanye nokunciphisa izindleko zabasebenzi lenza kube yindlela ekhangayo kubalimi emhlabeni jikelele. Njengoba ezolimo ziqhubeka nokubhekana nezinselelo ezihlobene nokuntuleka kwamanzi kanye nokusimama kwemvelo, ukwamukelwa kwezindlela ezintsha zokunisela njenge-double-line drip tape kubalulekile ekusaseni lezolimo.
Isikhathi sokuthunyelwe: Ephreli-27-2023